# A SIMPLY CONNECTED MANIFOLD WITH TWO SYMPLECTIC DEFORMATION EQUIVALENCE CLASSES WITH DISTINCT SIGNS OF SCALAR CURVATURES

Kim, Jongsu

• Published : 2014.10.31
• 31 8

#### Abstract

We present a smooth simply connected closed eight dimensional manifold with distinct symplectic deformation equivalence classes [[${\omega}_i$]], i = 1, 2 such that the symplectic Z invariant, which is defined in terms of the scalar curvatures of almost K$\ddot{a}$hler metrics in [5], satisfies $Z(M,[[{\omega}_1]])={\infty}$ and $Z(M,[[{\omega}_2]])$ < 0.

#### Keywords

almost K$\ddot{a}$hler metric;scalar curvature;symplectic manifold;symplectic deformation equivalence class

#### References

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#### Cited by

1. SIMPLY CONNECTED MANIFOLDS OF DIMENSION 4k WITH TWO SYMPLECTIC DEFORMATION EQUIVALENCE CLASSES vol.22, pp.4, 2015, https://doi.org/10.7468/jksmeb.2015.22.4.359

#### Acknowledgement

Supported by : National Research Foundation of Korea(NRF)